Liquid Polysulfone Concentrate
Low-viscosity thermoplastic polysulfone in concentrated solution primary form, but solid-adjusted for 3911.90.91.10 as other thermoplastic per notes. Used in specialty coatings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If true solution/dispersion >primary solid
Solutions explicitly separate from solid thermoplastics in 3911.90.55.
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Import Tips & Compliance
• Specify <50% solvent to argue primary thermoplastic vs dispersion
• Stability data prevents reclass as 3917 tubes if hose-applied
Related Products under HTS 3911.90.91.10
Coumarone-Indene Resin Flakes
Coumarone-indene resins in thermoplastic flake form, primary products under heading 3911 as specified in note 3. Classified in 3911.90.91.10 for other thermoplastics not elsewhere included, used as tackifiers in adhesives and tires.
Polyetherimide Resin Pellets
Polyetherimide (PEI) is a high-performance thermoplastic polymer in primary pellet form, derived from specific monomers meeting the 95% weight requirement under subheading notes. Classified under 3911.90.91.10 as a thermoplastic product specified in note 3, not elsewhere specified, due to its amorphous structure and engineering properties. Used in demanding applications like aerospace components.
Polysulfone Granules
Polysulfone (PSU) thermoplastic resin in granule primary form, a polymer specified in heading 3911 note 3 with monomer units exceeding 95% by weight. Falls under 3911.90.91.10 as other thermoplastic not elsewhere specified, valued for heat resistance in medical and filtration applications.
Polyterpene Thermoplastic Pellets
Synthetic polyterpene resins in thermoplastic pellet primary form, covered under 3911 note 3 products. 3911.90.91.10 applies as other thermoplastic, ideal for hot-melt adhesives with high tack.
Thermoplastic Polysulfide Resin Powder
Polysulfide polymers in thermoplastic powder primary form, note 3 products of heading 3911. Under 3911.90.91.10 as other thermoplastics, used in sealants and fuel-resistant coatings.
High-Tack Petroleum Resin Beads
Hydrogenated C9 petroleum resins in thermoplastic bead form, primary under 3911 note 3. 3911.90.91.10 for other thermoplastics, applied in pressure-sensitive adhesives.